Bumper-attaching device



Dec. 14,1925. l 4 l J. J. DowNEY l610,937

BUMPER ATTACHING DEVICE Filed Jan. 19, 1924 lilllll' llu! f' "1%:

Patented Dec. 14, 1926.

tts-3i JOHN J. DOWNEY, F NEVI YORK, N. Y.

BUMPER-ATTACHING DEVICE.

Application filed July 19, 1924. Serial No. 726,932',

This invention relates to improvements in bumper-attaching devices.

One of the objects of my invention is to provide an attaching device forautomobile bumpers which is capable of adjustment to permit ready andquick mounting at varying points along the frame end of the chassis andmay be rigidly retained in position therein.

Another object of my invention is to provide an attaching device whichwill effectively prevent the dropping or downward sagging of the bumperand which will maintain a firm grip upon the channel-bar frameends ofthe automobile.

Another object of my invention is to produce a bumper-attaching devicewhich will utilize a shearing action or pressure on the channel-barframe-end to clamp the parts thereto` p y Another object of my inventionis to utilize a bumper-attaching-device in which 'clamping pressure isprocured by the application of screw pressure to two parts, one of whichis fulcrumed on the other.

Another object of my invention is to produce a buinper-attaching-deviceof relatively small size and composed of two fulcrumed members, by meansof which screw pressure may be effectively applied to produce a shearingaction on the frame-ends to the end that the clamp maybe firmly andsecurely applied on such frameends.

Another object 4of my invention is to pro vide an attaching-deviceadapted to utilize the rivet heads in the fram-e-ends as anchor ingmeans to assist in preventing dropping of the fastening device or clamp.

Another object of my invention is to provide a device composed of twoclamping members, one of which is anchored on the lower flange and theother of which is an'- chored on a rivet head and means for applyingclamping pressure between the two members.

lVithV these and other objects yin view, the invention comprises thecombination of members and arrangement of parts so combined as to co-actand cooperate with each other in the performance of the functions andthe accomplishment of the results herein contemplated, and comprises Vinone of its adaptations the species or preferred form illustrated in theaccompanying drawings? in'whichz 'l Fig. l is a plan view of a bumperattached to the frame-ends of a motor vehicle;

Fig. 2 is a section on the line 2-2 of Fig. 1;

Fig. 3 is an enlarged view in elevation of one end portion of a bumperbar connected to the frame end by the use of my improved clamps;

Fig 4t is a section on the line t-t of Fig. 2;

Figs. 5 and 6 are, respectively, perspective views of the clampingmembers employed by me.

Referring now to these drawings, which illustrate a preferred embodimentof my invention, l indicates two parallel outwardlyextending frame-endsor rails at the front end of the chassis of a motor vehicle, whichfram-e ends are usually of channelled crosssection, as indicated in Fig.2, to provide a web-portion la and upper and low-er flangeH portions1lb-1.

2 indicates a bumper of any suitable type which it is desired to mounton said frameends or rails. in the embodiment shown, the bumper 2 isattached to a pair of outwardly-extending supporting or attaching bars3. These supporting bars are secured to the fraineends or rails byattachingdevices or clamps e which are composed of two members arrangedto have a shearing movement and to apply a shearing pressure on theframe end, and preferably to bear orr abut against one of theflangesvand the web portion of such frame end or rail.

In the preferred form illustrated, the clamp comprises a flange-engagingmember 5 and a web-engaging member 6, one of which members is fulcrumedon the other in a vertical plane remote from the side of the frame endor rail 4l andv screw pressure is applied on the two members between thesaid fulcruined edges of the member-and the rail-engaging portions. Thisis preferably accomplished by means of a bolt 7, so

that the members apply a shearing pressure on the rail 1 through the webla and flange 1C. `As illustrated, the member 5 is provided with a. hook5a which is adapted to fit over the flange lc and may thereforebeinitially supported on the said flange. Said member 5 also preferablyhas an outwardly and downwardly inclined projecting portion 5b which isprovided on its upper surfacewith a Series of grooves 5 into one ofwhich a .sa y

fulcrumedtoe GFL of the other member 6 is adapted to seat -for thepurpose of fulcrumproviding a series et' such tulcrum-grooves 5c,adjustment is provided to enable the clamp to be positioned at varyingpositions" along the bar, it being understood that the width of tie barsl varies Ylroin the front toward the rear, so that when the clamps arepositioned close to the iront end oi' theV bar the inner tulcrum groovewill be utilized while the sec-ond and` third grooves will be utilizedwhen the clamps are posi.- tioned tnrther toward the rear ot said bar.Both members are provided with registering bolt holes and, as shown, the

member is provided with an elongated bolt hole so that pressure may beapplied throwrh the bolt T in'the various adjusted pos ions et thedevice, and the member 5 is provided with a registering bolt hole Gb.Vlie bolt 7 is provided with a head 'in' at one side ot larger size thanthe bolt hole 5d and a nut Tb is applied upon the screw-threadedopposite end 7C of said bolt. Tightening up on the nut lb will thuscause clamping pressure to be applied between the members 6 and 5, andwill result in a shear-V ing motion et the parts. Application ol' thepower through the bolt 7 is thus preferably applied between thetulcruined portion and the bar to which the members are fastened.

ln the preferred enibodiment of mv invention, the member 6 is providedwith a socket G adapted to lit over one of the heads 8a` oi' the rivets8 usuallvY found in said traine-ends l, thus enabling a rivet head to beutilized as an anchor tor the web-engaging member, while the hoolr orbill portion 5a enables the flange to be utilized as an anchor 'tor theflange-engaging member 5. he web-engaging men'ibcr t? is also preterablv'termed with a relatively wide bracketl portion 6" which is providedwith bolt holes 6e into which tit bolts fl tor iiastening' the bars 3 tothe web-engaging meniber 6.

'll he said n'ebengagmg member 6 is pret-l erably provided with downvardlT extending flanges tif which embrace the projecting portion' o" atopposite sides and prevent the relative lateral movement between theprojecting 'tulcrumed portions ot two members 5 ande.

lt lwill be seen tirthermore that the shape et the ralorum toe Garaisesf'the outwardly projectingV portion ot the webeeng'aging member 6to space the saine from the ll'ang'el and" allow for shearingA en inginei'nl met i t 'l'ierebet een about the said: tulcrum 6a L 'd thnsprocure se'ciire fastening of the tivo members te th lframe-'ends Havingdescribed in;` nvention, I claim l. ein attaching device for fasteningbumpers' to automobile 'trame-ends embody-V ing clamps, each 'comprisinga. plurality of ing said member o npon the member 5. .Bv

members, one ot which is ulcrumed on the other and means for applyingpressure at one side otI said tulcruni to cause the members to apply ashearing pressure on said trame-ends.

Q. rn attaching device tor fastening bumpers to automobile channel-bartrameends embodying clamps, each comprising a plurality ot fnlcrumedmembers, one ot which is provided with a hook lit-ting over a flange etsaid trame-end and means tor applying iressure at lone side of saidiulcruni to canse the members to apply a shearing pressure on saidframe-ends.

3. in attaching device Yfor fastening bumpers to automobile trame-endsembodying clamps, each comprising two:v members having portions disposedat substantiall57 right angles to provide a seat for the side and bottomet a channel bar, one ot which members is tulcruinel on the other atapoint relativelj,Y reinetetroin said traine and means for applyingpressure between said tulcrumed'point and said traine.

Ll. An attaching device for fastening bumpers to automobile channel-bariranieends embodyingclamps, each comprising two members, one beingjitulcrumed on the ther at a point relatively remote from saidtrame-end, and one ot said members having a hook-portion `tor iittingover and engaging a flange ot said iiramefend, and a nut and bolt iorapplying pressure between said fulcriuned point and said frame.

5. An attaching device for fastening bumpers to automobile cliannebbarframeends embodying clamps,y each comprising two members, each havingoutwardly-pro jecting cooperative portions bentat an angle to the bodyportions ot' such members, one ot which bent portions is ulcrumed on theother and' one of said members having a hook-portion for fitting' overand engaging a flange ot said rameend, and means for applyingA pressurebetween saidtulcrum and the channel-bar frame-ends.

6. An attaching device for fastening bumpers to automobile channel-bartrameends embodying clamps, each comprising twol members', one ln ving aflange-engaging hook and both having outwardly-projecting cooperatingportions, one oi which port-ions has a tiilcrum and the other isprovided with means for preventing slipping ot the` tulcrum et theother, and also providing adjustment between the two clamping members toenable application thereof en channelbar frame-end at places varying inwidth.

7; An' attaching device for :tasten-ing bumpers` to autdinobile'channel-bar traineends embodying clamps, each comprising two members,one havingv a flange-engaging hook and both having outwardlyprojectingfulcriuned portions one of which is pro? videdfwith' a plurality oftuleruin grooves lll) Leidse? side-slipping of said members.

9. An attaching device for fastening bumpers to automobile channel-bartrameends embodying, in combination, a clamp member abutting' againstthe lower flange of an automobile channel-bar frame-end having at oneend a hook portion adapted to fit over and seat on the upper face ofsaid ange and the opposite end extending beyond said frame end andprovided with a series of grooves arranged transversely to thelongitudinal aXis of said member, another member engaging the web ofsaid channel-bar frame-end and having an outwardly projecting portionfulcrumed in one of the grooves on said other member, and pressureapplying means arranged between said fulcrumed portion and the frame-endfor applying a shearing stress by said members on said frame end.

10. An attaching device for fastening bumpers to automobile channel-barframeends embodying, in combination, a Clamp member abutting against thelower flange of an automobile channel-bar frame-end having at one end ahook portion adapted to fit over and seat on the upper face ot saidflange and the opposite end extending beyond said'frame end and providedwith a series of grooves arranged transversely to the longitudinal axisof said member, an other member engaging the web of said channel-barframe-end and having an outwardly projecting portion lulcrumed in'one ofthe grooves on said other member, and a nut and bolt arranged betweensaid fulcrumed portion and the trame end for applying a shearing stressby said members on said trame-end.

11. An attaching device l'or fastening bumpers to automobile channel-bartrameends embodying clamps, each comprising two fulcrumed members, oneoit which is provided with a hook portion fitting over thc lower flangeof said frame-end to provide an anchor therefor, and the other memberhaving a depression in its rear vface for embracing a rivet head on saidframe-end to anchor the same thereto, and means for applying` pr-essureat one side of said fulcrum to cause the members to apply a shearingpressure on said frame-end.

12. An attaching device for fastening bumpers to automobile channel-barframeends embodying, in combination, a clamp member abutting against thelower flange ot an automobile channel-bar frame-end having at one end ahook portion adapted to fit over and seat on the upper face of saidflange and the opposite end extending beyond said frame-end and providedwith a series of grooves arranged transversely to the longitudinal axisof said member, another member engaging the web of. said channel-barframe-end and having an outwardly projecting portion fulcrumed in one ofthe grooves on said other member and being provided in its rear facewith a depres-V sion for embracing a rivet head on said frame-end toanchor the same thereto and a nut and bolt arranged between Asaidfulcrumed portion and the frame end for applying a shearing stress bysaid members on said frame-end.

In witness whereof, I have signed my name to the foregoing specicati'on.

JOHN J. DOWNEY.

